Nearly three-quarters of the 21 anaphylaxis reactions71%occurred within 15 minutes of a person receiving a vaccination.
Messonnier says the CDC has been adapting recommendations as it learns more.
“The CDC and FDA are rigorously reviewing all serious adverse event reports.”
Arnold Jerocki / Stringer / Getty Images
Clark says the CDC plans to do a similar study with the Moderna vaccine.
Medical staff at vaccination sites can treat allergic reactions in the rare cases that they occur.
Other studies confirm what the CDC study shows about the low risk of severe allergic reactions to COVID-19 vaccines.
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Published online December 2020:S2213219820314112.
